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Patents > IPCs : 1 or IPC B64C1/00

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Tech fields:
stability (272) · airplane (228) · automatic stability (115) · design (86) · aerodynamics (63) · control (53) · frame (48) · construction (47) · wings (44) · equilibrium (42) · None (41) · subsystem (37) · fuselage (34) · gyroscope (34) · lift (26) · rudder (21) · LTA (18) · steering (18) · Sustentation (17)
Full specification filed date:
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Supplementary to patent:
None (287) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent FR-1910-435648 (3) · Patent IT-1913-03-20 Vigilio Baldo (3) · Patent GB-1909-8531 (3)
Patent agent:
None (101) · None (27) · Armengaud jeune (22) · J. Bonnet-Thirion (11) · Haseltine, Lake & Co. (10) · Charles Dony (10) · 1 (10) · Boult, Wade & Tennant (9) · E. Blétry (8) · Schwab (7) · Hippolyte Josse (7) · De Bongé (7) · J. Germain (7) · Lavoix et Mosès (6) · Herbert Haddan & Co. (6) · Abel & Imray (6) · J. Fayollet (6) · P. Follin (6)
National tech categories:
FR 6.4 (276) · None (145) · DE 77h.5 (11) · USPC 244/119 (5) · USPC 244/177 (2) · USPC 244/79 (2) · FR 6.3 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (272) · CPC B64C2700/6218 (199) · CPC B64C1/00 (79) · CPC B64C17/06 (65) · CPC B64C2700/6216 (48) · CPC B64C2700/6219 (41) · CPC B64C2700/6228 (31) · CPC B64C2001/0063 (29) · CPC B64C2001/0081 (13) · CPC B64C2700/6225 (12) · None (11) · CPC B64C1/061 (7) · CPC B64C17/04 (7) · CPC B64C1/068 (6) · CPC B64C2700/6223 (5) · CPC B64C2700/6204 (5) · CPC B64C1/08 (4) · CPC B64C1/12 (4)
First filing:
Citations from after 1930:
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